package com.study.practice.observer;

import java.util.Observable;
import java.util.Observer;

/**
 * @Description :
 * @Author : guxuemin
 * @Version : V1.0.0
 * @Date : 2022/9/20 18:52
 */
public class MyObserver implements Observer {

    @Override
    public void update(Observable o, Object arg) {
        System.out.println("i am a observer");
    }
}
